Three‑phase asynchronous motors, also known as three‑phase induction motors, are powerful, high‑efficiency AC workhorses built for diverse industrial and commercial scenarios. They deliver steady, smooth power output for all types of mechanical equipment and are among the most widely adopted drive motors across industries.

The Y‑series three‑phase asynchronous motor represents an advanced, updated design. It features a totally‑enclosed, externally fan‑cooled squirrel‑cage construction. Boasting modern styling and compact layout, this motor offers low noise, high efficiency, ample torque and excellent starting performance. Simple structure brings great convenience for daily operation and maintenance. It applies Class‑F insulation engineered per international insulation standards, significantly lifting overall operational safety and reliability.

Built with premium raw materials including robust cast steel housings and high‑grade copper windings, three‑phase asynchronous motors guarantee long‑term service life. Optimized electromagnetic design achieves outstanding energy‑saving performance, cutting power draw while maintaining full output capacity.

Besides rugged build and high energy efficiency, these motors feature straightforward installation and commissioning. They can interface with multiple control systems, supporting flexible operation as well as precise regulation of speed and torque.

Core Advantages

1. Heavy‑duty cast iron housing with premium casting craftsmanship. Mounting dimensions fully comply with IEC international standards for great interchangeability.
2. High efficiency and energy conservation, low noise and vibration, extended service life and simple upkeep. It generates large starting torque and runs stably with reliable start‑up behaviour.
3. Extensive application scope. Suitable for machine tools, fans, water pumps, compressors, transportation facilities, agricultural machinery and general rotating mechanical equipment.
4. Capable of continuous S1‑cycle operation under ambient temperature up to 40 °C.
5. Customizable variants are available upon request, such as reducer‑dedicated motors, pump‑special motors, double‑shaft‑extension motors and motors with special mounting configurations.

Main Technical Parameters

• Frame size: 80‑355
• Power range: 0.75‑315 kW
• Rated frequency: 50 Hz / 60 Hz
• Rated voltage: 380 V; alternative custom voltages including 220 V, 400 V, 415 V, 660 V, 1140 V are supported
• Protection class: IP54, IP55
• Cooling method: IC411
• Working duty: S1 continuous operation
• Connection mode: star (Y) connection for power ≤3 kW; delta (△) connection for power ≥4 kW

Structural Features

1. The Y‑series motor frame adopts a combined square‑round outer profile with vertically and horizontally arranged heat‑dissipation ribs, mainly in cast‑iron construction. Models H63‑112 can also be supplied with die‑cast‑aluminum housings.
2. It uses shallow‑type end shields with increased quantity and dimension of internal reinforcing ribs, primarily cast‑iron; H63‑112 versions may use die‑cast‑aluminum. Non‑stop oil replenishing fittings are fitted for frame size H180 and above for easier operation and overhaul.
3. Terminal box reaches IP55 protection grade. H63‑280 terminal boxes are mostly aluminum‑alloy die‑cast (cast‑iron optional), while H315‑355 adopt cast‑iron boxes. A dedicated grounding terminal is built inside the box. Thermal‑protection mounting positions are reserved for H160 and larger frames. Cable entries adopt dual‑hole layout with two sealing forms: sealing cap and locking‑gland seal. The terminal box normally sits on the top of the frame and allows multi‑direction cable entry; for cast‑iron‑frame motors H80‑355, side‑mount terminal‑box installation is also an option.

Application Scenarios

Three‑phase asynchronous motors drive pumps, machine tools, fans, mills, crushers, rolling mills, compressors and a broad spectrum of other industrial machinery.

They are widely deployed across national‑economy sectors: machine processing, water pumping, ventilation, compression equipment, mixing devices, printing equipment and agricultural & food‑processing facilities, for environments free of flammable, explosive or corrosive gases. Typical industries include power generation, mining, steel & metallurgy, petrochemical, water conservancy, transportation and building‑material production.

Primary Manufacturing Process

Stator production: Housing processing → stamping → core stacking → coil winding → coil inserting → varnish impregnation & drying

Rotor production: Shaft blank machining → core pressing‑on → rotor aluminum die‑casting → rotor shaft assembling → winding processing → varnish impregnation & drying → dynamic‑balance correction

Motor assembly: Stator‑rotor assembling → factory performance testing → surface painting → packaging and warehousing